Tread portion of an automobile tire



FIG. 1 is a perspective view of a tread portion of an automobile tireshowing our design;

FIG. 2 a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a fragmentary enlarged front view showing the details of thetread portion thereof;

FIG. 6 is a section view taken along line 6-6 in FIG. 5; and,

FIG. 7 is a section view taken along line 7-7 in FIG. 5.

In the drawings, the broken lines defining the sidewall and inner beaddepict environmental subject matter that forms no part of the claim.

CLAIM The ornamental design for a tread portion of an automobile tire,as shown and described.